![]() ![]() "We're working on making the light-emitting material in LEDs shine brighter and last longer, says Prof Odireleng Martin Ntwaeaborwa. This still leaves a huge number of households and businesses around the globe vulnerable to inadequate lighting, or risking a fire at home by burning candles to see what they are cooking, or to study.īut if an LED bulb can be a fraction of the cost and last much longer, safe lighting can become accessible to more people. LEDs also function well in battery-powered lanterns during power outages or camping trips. Their light can be focused, so it is easy to light up only what is needed.Ĭurrent LED bulbs are ideal for those with the finances to keep replacing them, and to pay ever-rising electricity bills. ![]() LED bulbs don't get hot and don't break easily. An LED bulb can be a cozy "warm white" light or a "cold white" for offices. The bulbs reduce the lighting bill to a fraction of what's needed for other options. These days, light emitting diode (LED) bulbs are available for middle-class homes. These are fragile, prone to flickering, and contain poisonous mercury vapors. Then fluorescent lighting came along, using much less energy. In other words, good for romance and atmosphere, but not good for low lighting bills. They also give off lots of heat, and light up everything around them with a rosy-tinged hue. Still, all these options are too hot to handle carelessly. ![]()
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